Blackmagic Design ATEM 4 M/E Constellation 4K – 40-Input Switcher
Blackmagic Design ATEM 4 M/E Constellation 4K – 40-Input Switcher is backordered and will ship as soon as it is back in stock.
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Blackmagic Design ATEM 4 M/E Constellation 4K – 40-Input Switcher
Product Overview
The Blackmagic Design ATEM 4 M/E Constellation 4K is a massive 4 M/E Ultra HD live production switcher with 40 standards-converted 12G-SDI inputs, 24 12G-SDI aux outputs, 16 ATEM Advanced Keyers, four multiviews, and two SuperSource processors for a total of 12 DVEs. It's the flagship of the Constellation line, built for the largest multi-camera live events.
Product Description
The 4 M/E Constellation 4K delivers broadcast power on a huge scale: 40 independent 12G-SDI inputs, each with its own up/cross converter so any source format re-syncs automatically, and 24 fully independent SDI outputs that can route any input or internal source for stage screens, master recorders, streaming processors, or ISO recording with matching timecode. It includes 16 ATEM Advanced Keyers (4 per M/E row for virtual sets), two SuperSource processors, media players, and four independent multiviews supporting up to 64 views across four monitors.
The built-in Fairlight audio mixer handles up to 156 input channels — the largest in any live production switcher — with 6-band parametric EQ, compressor, limiter, expander, and noise gate per channel, plus dual MADI outputs and a MADI input for handing audio to an external engineer. The compact rack-mount chassis includes a front control panel with LCD for walk-up operation, RS-422 serial control, and professional talkback over 5-pin XLR plus RJ12 for ClearCom/RTS systems. ATEM Constellation uses broadcast-standard program/preview switching, and the free ATEM Software Control is included — add a 4 M/E ATEM Advanced Panel or ATEM Camera Control Panel for full hardware control. The USB-C connection also works as a webcam source for streaming software.
Key Features
- 40× 12G-SDI inputs — Each with a dedicated up/cross converter.
- 24× 12G-SDI aux outputs — Independently routable feeds.
- 16 ATEM Advanced Keyers — 4 per M/E row for multi-camera virtual sets.
- 2 SuperSource processors — 12 DVEs total for complex compositions.
- 4 multiviews — Up to 64 views across four monitors.
- 156-channel Fairlight mixer — Full processing per channel, MADI in/out.
- RS-422 & talkback — Serial control plus ClearCom/RTS-compatible talkback.
- Program/preview switching — Broadcast-standard two-step workflow.
Typical Applications
- Broadcast studio — Large multi-camera news, sports, and virtual-set production.
- Auditorium and live events — Concerts, festivals, and major stage productions.
- House of worship — Large-campus services with many cameras and feeds.
- All-hands and multi-purpose rooms — Large-scale corporate broadcasts.
- Training rooms — Broadcast-career instruction on flagship switching gear.
Technical Specifications
| Model | SWATEMSCN2/2ME4/4K |
| M/E Rows | 4 M/E |
| Video Inputs | 40× 12G-SDI (per-input up/cross conversion) |
| Aux Outputs | 24× 12G-SDI (independently routable) |
| Keyers | 16 ATEM Advanced Keyers (4 per M/E) |
| SuperSource | 2 processors (12 DVEs total) |
| Multiview | 4 independent multiviews (up to 64 views) |
| Audio Mixer | Fairlight, up to 156 channels; 2× MADI out, 1× MADI in |
| Control | Front panel, RS-422, ATEM Software Control, optional Advanced/Camera panels |
| Talkback | 5-pin XLR + RJ12 (ClearCom/RTS), SDI talkback |
FAQ
How does this compare to the 1 M/E and 2 M/E models? The 4 M/E has 40 inputs, 16 keyers, dual SuperSource, and four multiviews; the 2 M/E has 20 inputs and 8 keyers; the 1 M/E has 10 inputs and 4 keyers.
How many audio channels does the mixer handle? Up to 156 input channels, with dual MADI outputs and a MADI input for external mixing.
What talkback systems are supported? 5-pin XLR headset, plus RJ12 for industry-standard systems like ClearCom and RTS, and SDI talkback to Blackmagic cameras.
Can I control it from hardware? Yes — the free ATEM Software Control is included, and a 4 M/E ATEM Advanced Panel or ATEM Camera Control Panel can be added.
Are all features included? Yes — no license fees; all keyers, SuperSource, DVEs, and multiviews are always enabled.
At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
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